MCQs Quiz

Thermogravimetric analysis (TGA) is a key thermal technique that measures mass changes of pharmaceutical materials as a function of temperature or time. For B. Pharm students, understanding TGA instrumentation—furnace, microbalance, crucible, thermocouple, purge gas and software—and operational parameters like heating rate, atmosphere, sample mass and calibration is essential. TGA helps assess thermal stability, moisture/volatile loss, … Read more

Principles of Thermal Gravimetric Analysis (TGA) MCQs With Answer — Thermal Gravimetric Analysis (TGA) is a core thermal technique in pharmaceutical analysis that measures mass change of a sample as a function of temperature or time under controlled atmosphere. This introduction covers the principles of TGA—mass loss, decomposition, evaporation, and residual ash—instrument components (balance, furnace, … Read more

Introduction: Mass spectrometry is a core analytical tool in pharmaceutical sciences, combining ionization techniques, mass analyzers and detectors to identify and quantify drugs, metabolites and biomolecules. This introduction covers instrumentation and applications relevant to B. Pharm students: ion sources (EI, ESI, MALDI, APCI), mass analyzers (quadrupole, TOF, Orbitrap, ion trap, FT‑ICR), tandem MS for structural … Read more

Introduction: Mass analyzers are central to mass spectrometry in pharmaceutical analysis. Time-of-Flight (TOF) and Quadrupole analyzers offer complementary strengths for B. Pharm students: TOF provides high resolution, wide mass range, and rapid acquisition using pulsed ion beams and flight-time measurement, while Quadrupole analyzers use oscillating RF/DC fields to filter ions by mass-to-charge ratio (m/z) with … Read more

Ionization techniques – MALDI and FAB MCQs With Answer Understanding ionization techniques like matrix-assisted laser desorption/ionization (MALDI) and fast atom bombardment (FAB) is essential for B. Pharm students working with mass spectrometry of drugs, peptides, polymers and biomolecules. This introduction explains principles, sample preparation, matrices, ion formation (proton transfer, cationization), instrumentation (MALDI-TOF), common matrices (DHB, … Read more

Introduction: Chemical ionization (CI) is a key ionization technique in mass spectrometry that B.Pharm students must master for drug analysis and structural elucidation. CI is a soft ionization method that uses a reagent gas (e.g., methane, isobutane, ammonia) ionized by electrons to produce reagent ions which transfer charge or protons to analyte molecules. Compared with … Read more

Ionization techniques are central to mass spectrometry, and Electron Impact (EI) ionization remains a foundational method for organic and pharmaceutical analysis. This concise guide focuses on Ionization techniques – Electron impact ionization MCQs With Answer tailored for B. Pharm students, covering EI principles, ion source design, electron energy effects, molecular ion formation, fragmentation pathways, spectral … Read more

Fragmentation pattern and interpretation in mass spectrometry MCQs With Answer Understanding fragmentation patterns and interpretation in mass spectrometry is vital for B.Pharm students involved in drug analysis, structural elucidation, and quality control. This topic covers mass spectra terminology (molecular ion, base peak, fragment ions), common fragmentation pathways (alpha-cleavage, McLafferty rearrangement, neutral losses like H2O/CO/NH3), isotopic … Read more

Principles of Mass Spectrometry MCQs With Answer Mass spectrometry is a core analytical technique for B. Pharm students, combining ionization, mass analyzers, detectors, and data interpretation to identify and quantify drugs, metabolites, and impurities. This set of MCQs covers fundamental principles—ionization methods (ESI, MALDI, EI, CI), mass-to-charge ratio (m/z), mass analyzers (quadrupole, TOF, Orbitrap, FT-ICR), … Read more

Nuclear magnetic resonance (NMR) spectroscopy is a cornerstone technique in pharmaceutical analysis for B. Pharm students. NMR aids structural elucidation, identification of impurities and metabolites, assessment of purity and polymorphism, and quantitative NMR (qNMR) for precise drug assay. Key approaches include proton NMR (1H NMR), carbon-13 NMR (13C NMR), and advanced two-dimensional experiments (COSY, HSQC, … Read more